1
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Cui Y, Zhao Y, Shen J, Zhang G, Ding C. The stable "F-SO 2 +" donor provides a mild and efficient approach to nitriles and amides. RSC Adv 2022; 12:33064-33068. [PMID: 36425170 PMCID: PMC9672908 DOI: 10.1039/d2ra05890a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Accepted: 10/20/2022] [Indexed: 10/17/2023] Open
Abstract
In this update, we developed a mild, efficient and practical method using fluorosulfuryl imidazolium salt A as an environment friendly promoter for conversion of oximes to nitriles or amides via β-elimination or Beckmann rearrangement in almost quantitative yield in 10 minutes. The target products were generated in gram-scale and could be collected through crystallization without silica gel column purification in excellent yield.
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Affiliation(s)
- Yin Cui
- College of Chemical Engineering, Zhejiang University of Technology Hangzhou 310014 P. R. China
| | - Yiyong Zhao
- Zhejiang Ecological Environment Low Carbon Development Center Hangzhou 310014 P. R. China
| | - Junjie Shen
- Zhejiang Kefeng New Material Co. LTD Huzhou 313200 P. R. China
| | - Guofu Zhang
- College of Chemical Engineering, Zhejiang University of Technology Hangzhou 310014 P. R. China
| | - Chengrong Ding
- College of Chemical Engineering, Zhejiang University of Technology Hangzhou 310014 P. R. China
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2
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Györke G, Dancsó A, Volk B, Bezúr L, Hunyadi D, Szalóki I, Milen M. Direct Use of Copper-Containing Minerals in Goldberg Arylation of Amides. Catal Letters 2022. [DOI: 10.1007/s10562-022-03989-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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3
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Lee C, Thomson BJ, Sammis GM. Rapid and column-free syntheses of acyl fluorides and peptides using ex situ generated thionyl fluoride. Chem Sci 2021; 13:188-194. [PMID: 35059166 PMCID: PMC8694322 DOI: 10.1039/d1sc05316g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Accepted: 11/28/2021] [Indexed: 01/28/2023] Open
Abstract
Thionyl fluoride (SOF2) was first isolated in 1896, but there have been less than 10 subsequent reports of its use as a reagent for organic synthesis. This is partly due to a lack of facile, lab-scale methods for its generation. Herein we report a novel protocol for the ex situ generation of SOF2 and subsequent demonstration of its ability to access both aliphatic and aromatic acyl fluorides in 55-98% isolated yields under mild conditions and short reaction times. We further demonstrate its aptitude in amino acid couplings, with a one-pot, column-free strategy that affords the corresponding dipeptides in 65-97% isolated yields with minimal to no epimerization. The broad scope allows for a wide range of protecting groups and both natural and unnatural amino acids. Finally, we demonstrated that this new method can be used in sequential liquid phase peptide synthesis (LPPS) to afford tri-, tetra-, penta-, and decapeptides in 14-88% yields without the need for column chromatography. We also demonstrated that this new method is amenable to solid phase peptide synthesis (SPPS), affording di- and pentapeptides in 80-98% yields.
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Affiliation(s)
- Cayo Lee
- Department of Chemistry, University of British Columbia 2036 Main Mall Vancouver British Columbia V6T 1Z1 Canada
| | - Brodie J Thomson
- Department of Chemistry, University of British Columbia 2036 Main Mall Vancouver British Columbia V6T 1Z1 Canada
| | - Glenn M Sammis
- Department of Chemistry, University of British Columbia 2036 Main Mall Vancouver British Columbia V6T 1Z1 Canada
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4
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Liao X, Zhou Y, Ai C, Ye C, Chen G, Yan Z, Lin S. SO2F2-mediated oxidation of primary and tertiary amines with 30% aqueous H2O2 solution. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153457] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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5
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Aksenov AV, Grishin IY, Aksenov NA, Malyuga VV, Aksenov DA, Nobi MA, Rubin M. Electrophilically Activated Nitroalkanes in Synthesis of 3,4-Dihydroquinozalines. Molecules 2021; 26:4274. [PMID: 34299549 PMCID: PMC8306411 DOI: 10.3390/molecules26144274] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 07/12/2021] [Accepted: 07/12/2021] [Indexed: 11/22/2022] Open
Abstract
Nitroalkanes activated with polyphosphoric acid serve as efficient electrophiles in reactions with various nucleophilic amines. Strategically placed second functionality allows for the design of annulation reactions enabling preparation of various heterocycles. This strategy was employed to develop an innovative synthetic approach towards 3,4-dihydroquinazolines from readily available 2-(aminomethyl)anilines.
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Affiliation(s)
- Alexander V. Aksenov
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin St., 355017 Stavropol, Russia; (I.Y.G.); (N.A.A.); (V.V.M.); (D.A.A.)
| | - Igor Yu. Grishin
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin St., 355017 Stavropol, Russia; (I.Y.G.); (N.A.A.); (V.V.M.); (D.A.A.)
| | - Nicolai A. Aksenov
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin St., 355017 Stavropol, Russia; (I.Y.G.); (N.A.A.); (V.V.M.); (D.A.A.)
| | - Vladimir V. Malyuga
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin St., 355017 Stavropol, Russia; (I.Y.G.); (N.A.A.); (V.V.M.); (D.A.A.)
| | - Dmitrii A. Aksenov
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin St., 355017 Stavropol, Russia; (I.Y.G.); (N.A.A.); (V.V.M.); (D.A.A.)
| | - Mezvah A. Nobi
- Department of Chemistry, University of Kansas, 1567 Irving Hill Road, Lawrence, KS 66045, USA;
| | - Michael Rubin
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin St., 355017 Stavropol, Russia; (I.Y.G.); (N.A.A.); (V.V.M.); (D.A.A.)
- Department of Chemistry, University of Kansas, 1567 Irving Hill Road, Lawrence, KS 66045, USA;
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6
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Tandon N, Patil SM, Tandon R, Kumar P. Magnetically recyclable silica-coated ferrite magnetite-K 10 montmorillonite nanocatalyst and its applications in O, N, and S-acylation reaction under solvent-free conditions. RSC Adv 2021; 11:21291-21300. [PMID: 35478786 PMCID: PMC9034005 DOI: 10.1039/d1ra02222a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Accepted: 05/27/2021] [Indexed: 11/21/2022] Open
Abstract
Novel silica-coated ferrite nanoparticles supported with montmorillonite (K10) have been prepared successfully by using a simple impregnation method. Further, these nanoparticles were characterized by using different analytical methods like FT-IR, PXRD, EDS, and FE-SEM techniques. In addition, these nanoparticles have been explored for their catalytic activity for the O, N, and S-acylation reactions under solvent-free conditions which gave moderate to excellent yields in a much shorter reaction time. Moreover, these nanoparticles could easily be separated out from the reaction medium after the reaction completion by using an external magnetic field and have been re-used for 10 cycles without any significant loss of the catalytic activity.
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Affiliation(s)
- Nitin Tandon
- Department of Chemistry, School of Chemical Engineering and Physical Sciences, Lovely Professional University Phagwara-144411 India
| | - Shripad M Patil
- Department of Chemistry, School of Chemical Engineering and Physical Sciences, Lovely Professional University Phagwara-144411 India
| | - Runjhun Tandon
- Department of Chemistry, School of Chemical Engineering and Physical Sciences, Lovely Professional University Phagwara-144411 India
| | - Pushpendra Kumar
- Department of Chemistry, School of Chemical Engineering and Physical Sciences, Lovely Professional University Phagwara-144411 India
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7
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Plehiers PP, Coley CW, Gao H, Vermeire FH, Dobbelaere MR, Stevens CV, Van Geem KM, Green WH. Artificial Intelligence for Computer-Aided Synthesis In Flow: Analysis and Selection of Reaction Components. FRONTIERS IN CHEMICAL ENGINEERING 2020. [DOI: 10.3389/fceng.2020.00005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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8
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Zhang G, Cui Y, Zhao Y, Cui Y, Bao S, Ding C. A Practical Approach to Ureas and Thiocarbamates: SO
2
F
2
‐Promoted Lossen Rearrangement of Hydroxamic Acid. ChemistrySelect 2020. [DOI: 10.1002/slct.202002270] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Guofu Zhang
- College of Chemical EngineeringZhejiang University of Technology Hangzhou 310014 P. R. China
| | - Yin Cui
- College of Chemical EngineeringZhejiang University of Technology Hangzhou 310014 P. R. China
| | - Yiyong Zhao
- Zhejiang Emission Trading Center Hangzhou 310012 P. R. China
| | - Yunqiang Cui
- Zhejiang Yuntao Biotechnology Co., Ltd Shaoxing 312369 P. R. China
| | - Shenxiao Bao
- Hangzhou Sandun Middle School Hangzhou 310030 P. R. China
| | - Chengrong Ding
- College of Chemical EngineeringZhejiang University of Technology Hangzhou 310014 P. R. China
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9
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Ding C, Zhang G, Xuan L, Zhao Y. Sulfuryl Fluoride Promoted Thiocyanation of Alcohols: A Practical Method for Preparing Thiocyanates. Synlett 2020. [DOI: 10.1055/s-0040-1707151] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
A novel SO2F2-promoted thiocyanation method for the one-step synthesis of thiocyanates through C–O bond cleavage of readily available alcohols with ammonium thiocyanate as the thiocyanating agent was developed. The method avoids the use of additional catalyst, and a variety of (hetero)arene, alkene and aliphatic alcohols reacted with high efficiency in ethyl acetate under mild conditions to afford the corresponding thiocyanates in excellent to quantitative yields with broad functional-group compatibility.
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10
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Zhao Y, Wei J, Ge S, Zhang G, Ding C. SO 2F 2-Mediated one-pot cascade process for transformation of aldehydes (RCHO) to cyanamides (RNHCN). RSC Adv 2020; 10:17288-17292. [PMID: 35521444 PMCID: PMC9053412 DOI: 10.1039/d0ra02631j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Accepted: 04/21/2020] [Indexed: 12/13/2022] Open
Abstract
A simple, mild and practical cascade process for the direct conversion of aldehydes to cyanamides was developed featuring a wide substrate scope and great functional group tolerability. This method allows for transformations of readily available, inexpensive, and abundant aldehydes to highly valuable cyanamides in a pot, atom, and step-economical manner with a green nitrogen source. This protocol will serve as a robust tool for the installation of the cyanamide moiety in various complicated molecules.
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Affiliation(s)
- Yiyong Zhao
- College of Chemical Engineering, Zhejiang University of Technology Hangzhou 310014 People's Republic of China
| | - Junjie Wei
- Zhejiang Emission Trading Center Hangzhou 310014 People's Republic of China
| | - Shuting Ge
- College of Chemical Engineering, Zhejiang University of Technology Hangzhou 310014 People's Republic of China
| | - Guofu Zhang
- College of Chemical Engineering, Zhejiang University of Technology Hangzhou 310014 People's Republic of China
| | - Chengrong Ding
- College of Chemical Engineering, Zhejiang University of Technology Hangzhou 310014 People's Republic of China
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11
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Liang DD, Streefkerk DE, Jordaan D, Wagemakers J, Baggerman J, Zuilhof H. Silicon-Free SuFEx Reactions of Sulfonimidoyl Fluorides: Scope, Enantioselectivity, and Mechanism. Angew Chem Int Ed Engl 2020; 59:7494-7500. [PMID: 32157791 PMCID: PMC7216998 DOI: 10.1002/anie.201915519] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 01/30/2020] [Indexed: 12/20/2022]
Abstract
SuFEx reactions, in which an S−F moiety reacts with a silyl‐protected phenol, have been developed as powerful click reactions. In the current paper we open up the potential of SuFEx reactions as enantioselective reactions, analyze the role of Si and outline the mechanism of this reaction. As a result, fast, high‐yielding, “Si‐free” and enantiospecific SuFEx reactions of sulfonimidoyl fluorides have been developed, and their mechanism shown, by both experimental and theoretical methods, to yield chiral products.
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Affiliation(s)
- Dong-Dong Liang
- Laboratory of Organic Chemistry, Wageningen University, Stippeneng 4, 6708WE, Wageningen, The Netherlands
| | - Dieuwertje E Streefkerk
- Laboratory of Organic Chemistry, Wageningen University, Stippeneng 4, 6708WE, Wageningen, The Netherlands
| | - Daan Jordaan
- Laboratory of Organic Chemistry, Wageningen University, Stippeneng 4, 6708WE, Wageningen, The Netherlands
| | - Jorden Wagemakers
- Laboratory of Organic Chemistry, Wageningen University, Stippeneng 4, 6708WE, Wageningen, The Netherlands
| | - Jacob Baggerman
- Laboratory of Organic Chemistry, Wageningen University, Stippeneng 4, 6708WE, Wageningen, The Netherlands
| | - Han Zuilhof
- Laboratory of Organic Chemistry, Wageningen University, Stippeneng 4, 6708WE, Wageningen, The Netherlands.,School of Pharmaceutical Science and Technology, Tianjin University, 92 Weijin Road, Tianjin, China.,Department of Chemical and Materials Engineering, Faculty of Engineering, King Abdulaziz University, Jeddah, Saudi Arabia
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12
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Liang D, Streefkerk DE, Jordaan D, Wagemakers J, Baggerman J, Zuilhof H. Silicon‐Free SuFEx Reactions of Sulfonimidoyl Fluorides: Scope, Enantioselectivity, and Mechanism. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201915519] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Dong‐Dong Liang
- Laboratory of Organic ChemistryWageningen University Stippeneng 4 6708WE Wageningen The Netherlands
| | - Dieuwertje E. Streefkerk
- Laboratory of Organic ChemistryWageningen University Stippeneng 4 6708WE Wageningen The Netherlands
| | - Daan Jordaan
- Laboratory of Organic ChemistryWageningen University Stippeneng 4 6708WE Wageningen The Netherlands
| | - Jorden Wagemakers
- Laboratory of Organic ChemistryWageningen University Stippeneng 4 6708WE Wageningen The Netherlands
| | - Jacob Baggerman
- Laboratory of Organic ChemistryWageningen University Stippeneng 4 6708WE Wageningen The Netherlands
| | - Han Zuilhof
- Laboratory of Organic ChemistryWageningen University Stippeneng 4 6708WE Wageningen The Netherlands
- School of Pharmaceutical Science and TechnologyTianjin University 92 Weijin Road Tianjin China
- Department of Chemical and Materials EngineeringFaculty of EngineeringKing Abdulaziz University Jeddah Saudi Arabia
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13
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Abstract
The Beckmann rearrangement is an elegant transformation and has been used to great success in the synthesis of natural products and pharmaceuticals. In this review, the role of different catalysts as well as different medium for Beckmann rearrangement has been discussed over the last 20 years.
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Affiliation(s)
- Kamalpreet Kaur
- Department of Applied Sciences
- National Institute of Technology
- Narela
- India
| | - Suman Srivastava
- Department of Applied Sciences
- National Institute of Technology
- Narela
- India
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14
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Zhang G, Zhao Y, Ding C. A cascade process for directly converting nitriles (RCN) to cyanamides (RNHCN) via SO 2F 2-activated Tiemann rearrangement. Org Biomol Chem 2019; 17:7684-7688. [PMID: 31393502 DOI: 10.1039/c9ob01547g] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A simple, mild and practical process for the direct conversion of nitriles to cyanamides was newly discovered and exhibited a wide substrate scope as well as great functional group-tolerability (36 examples). In this efficient strategy, the in situ generated amidoximes obtained from the reaction of nitriles with hydroxylamine subsequently underwent Tiemann rearrangement, producing the corresponding cyanamides with great isolated yields under SO2F2. Additionally, the control experiments reportedly shed light on the tentative mechanism involved in the formation and elimination of the key intermediate: a sulfonyl ester.
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Affiliation(s)
- Guofu Zhang
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China.
| | - Yiyong Zhao
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China.
| | - Chengrong Ding
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China.
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